短語詞組短語overhead hand travelling crane 手動行車overhead travelling crane with crab 絞車式橋式起重機(jī)overhead travelling crane with hoist 電動葫蘆橋式起重機(jī)multi functional overhead travelling crane 多功能天車two -girder overhead travelling crane 雙梁式架空移動起重機(jī)travelling overhead crane 天車 返回 overhead travelling crane